SOLUTION: solve by any method:
5x + 6y =14
-3y+ x =7
Algebra.Com
Question 293755: solve by any method:
5x + 6y =14
-3y+ x =7
Found 2 solutions by blwinbbbles, richwmiller:
Answer by blwinbbbles(106) (Show Source): You can put this solution on YOUR website!
5x + 6y = 14 and
-3y + x = 7
I think substitution would be the easiest
so let's rearrange -3y + x = 7 so add 3y to both sides
x = 3y + 7 now substitute into the first equation and solve
5(3y + 7) + 6y = 14
15y + 35 + 6y = 14
21y + 35 = 14 subtract 35 from both sides
21y = -21 divide by 21
y = -1
Now we know y = -1 use the first equation again and use -1 for y
5x + 6(-1) = 14
5x - 6 = 14 add 6 to both sides
5x = 20 divide by 5
x = 4
so now you have your cordinate (4, -1)
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
5x + 6y =14
x - 3y =7
multiply second by 2
5x+6y=14
2x-6y=14
add the two equations
7x=28
x=4
4-3y=7
-3y=3
y=-1
RELATED QUESTIONS
Solve the following system of linear equations using any method. If a solution does not... (answered by ankor@dixie-net.com)
I need help with this question.
Solve the equations using the substitution method.... (answered by jim_thompson5910)
How do I solve by addition method?
4x-3y=10... (answered by Alan3354)
To solve a system of two linear equations in two variables by the addition method. Solve... (answered by checkley77,arallie)
solve each system by any method
1 x-3y=1
3x-5y=-5
2 2x-3y=5... (answered by jim_thompson5910)
x+6y=20
-x+3y=7
sovle by elimination... (answered by Fombitz)
Please help me solve. solve by the elimination method. 5x+6y=-22
(answered by Alan3354,rfer)
Solve by elimination method
x + 6y = 55
-x + 3y =... (answered by stanbon)
solve by addtion method
5x-3y=16
4x-2y=14 (answered by richwmiller,stanbon)